package com.hlf.oss.service.impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.model.CannedAccessControlList;
import com.hlf.oss.service.OssService;
import com.hlf.oss.utils.ConstantPropertiesUtil;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;

/**
 * @author hlf
 * @createTime 2022/11/26 21:42
 * @description
 */
@Service
@CrossOrigin
public class OssServiceImpl implements OssService {

    @Override
    public String uploadFileAvatar(MultipartFile file) {
        //获取阿里云存储相关常量
        String endPoint = ConstantPropertiesUtil.END_POINT;
        String accessKeyId = ConstantPropertiesUtil.ACCESS_KEY_ID;
        String accessKeySecret = ConstantPropertiesUtil.ACCESS_KEY_SECRET;
        String bucketName = ConstantPropertiesUtil.BUCKET_NAME;
        String fileHost = ConstantPropertiesUtil.FILE_HOST;
        String uploadUrl = null;
        try {
            //判断oss实例是否存在：如果不存在则创建，如果存在则获取
            OSS ossClient = new OSSClientBuilder().build(endPoint, accessKeyId, accessKeySecret);
            //if (!ossClient.doesBucketExist(bucketName)) {
            //    //创建bucket
            //    ossClient.createBucket(bucketName);
            //    //设置oss实例的访问权限：公共读
            //    ossClient.setBucketAcl(bucketName, CannedAccessControlList.PublicRead);
            //}
            //获取上传文件流
            InputStream inputStream = file.getInputStream();

            //文件名：uuid.扩展名
            String fileName = file.getOriginalFilename(); // 文件名
            String uuid = UUID.randomUUID().toString().replaceAll("-",""); // 生产uuid
            fileName = uuid+fileName;
            //构建日期路径：avatar/2019/02/26/文件名
            String dataPath = new DateTime().toString("yyyy/MM/dd");
            fileName = dataPath+"/"+fileName;
            //文件上传至阿里云
            ossClient.putObject(bucketName, fileName, inputStream);
            // 关闭OSSClient。
            ossClient.shutdown();
            //获取url地址
            uploadUrl = "https://" + bucketName + "." + endPoint + "/" + fileName;
            return uploadUrl;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }




}







